Sync public subset from Flux

include/utils/generators.h

@@ -2,3 +2,4 @@
 #pragma once
 
 #include "./utils/generators/linspace.h"
+#include "./utils/generators/eye.h"

include/utils/generators/eye.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "utils/vector.h"
+#include "utils/matrix.h"
+
+
+namespace utils{
+
+	template <typename T>
+	utils::Matrix<T> eye(const T a, const utils::Vector<T>& b){
+
+		const uint64_t N = b.size();
+		utils::Matrix<T> C(N, a, T{0});
+
+		for (uint64_t i = 0; i < N; ++i){
+			C(i, b[i]) = T{1};
+		}
+		return C;
+	}
+
+
+
+
+} // end namespace utils